Figures (1)  Tables (1)

    • Figure 1. 

      Effects of methanogens on the host's metabolism and health and the mechanisms of methanogenesis.

    • Order Family Genus Species Substrates Ref.
      Methanobacteriales Methanobacteriaceae Methanobrevibacter M. smithii H2, methanol [19]
      M. oralis H2 [59]
      M. arboriphilus H2, formate [60]
      Methanosphaera M. stadtmanae H2, methanol [29]
      Methanomicrobiales Methanomicrobiaceae Methanogenium H2, formate [61]
      Methanosarcinales Methanosarcinaceae Methanosarcina M. barkeri Acetate [62]
      Methanimicrococcus Methylamine [58]
      Methanomassiliicoccales Methanomethylophilaceae Candidatus Methanomethylophilus M. alvus Methanol [63]
      Methanomassiliicoccaceae Methanomassiliicoccus M. intestinalis Methylamines [36]
      M. luminyensis Methylamines [64]

      Table 1. 

      The substrates available to methanogens from different methanogenesis pathways